Apple Motion 3 - Manual (Page 732)

732 Chapter 8 Working with Particles
 Lines: Each particle is represented by a line. This is a good preview mode to use to
analyze the vector of each particle’s motion. The length of each line is determined by
that particle’s speed, and the angle of each line equals each particle’s direction.
 Wireframe: Each particle is represented by a bounding box. Because the bounding
boxes are good indicators of each particle’s orientation in the system, this preview
mode is useful for evaluating the movements of individual particles. For example, it’s
easy to see the angle of rotation for particles that are spinning or following a
complex motion path.
 Image: This is the final particle system effect.